WO2013159247A1

WO2013159247A1 - Electromagnetic energy converter

Info

Publication number: WO2013159247A1
Application number: PCT/CN2012/000572
Authority: WO
Inventors: 吴军保; 张立群; 安邦; 林晓楠
Original assignee: 深圳蓝色飞舞科技有限公司
Priority date: 2012-04-28
Filing date: 2012-04-28
Publication date: 2013-10-31

Abstract

An electromagnetic energy converter comprises a group of permanent magnet elements (1), a group of soft magnet elements (3, 4) and a group of coil elements (2). The permanent magnet element (1) is fixed on a relative motion component, and the relative motion component causes switching of a magnetic path when in motion, so that the magnetic flux in the coil element (2) changes, and induction in the coil element (2) generates a current according to the electromagnetic induction principle. The electromagnetic energy converter is simple in the technique, and can provide electric energy for various devices and systems in need of transient electric energy.

Description

Electromagnetic energy converter

The invention relates to an electromagnetic energy converter. Specifically, the electromagnetic converter includes a set of soft magnetic components, a set of permanent magnet components, and a set of inductor turns. The permanent magnets are fixed to the relatively moving parts. The relative moving parts cause the magnetic circuit to switch during the movement, so that the magnetic flux in the inductance coil changes. According to the principle of electromagnetic induction, the coil induces a current.

Background technique

The electromagnetic energy converter is mainly designed according to the principle of electromagnetic induction, and the magnetic flux in the inductor line changes, thereby generating an induced current. In a sense, this is similar to a generator or motor, and it can achieve the function of converting mechanical energy into electrical energy. After a certain adjustment, the electric energy generated in this way is temporarily stored by some components, and then discharged through these components, thereby enabling power supply to small self-powered devices such as wireless switches.

The biggest function of the electromagnetic energy converter is to supply enough power to the load for a certain period of time. These loads are generally products that require short-term power supply. The most important goal of the electromagnetic energy converter in the application process is to provide some independent power supply equipment with sufficient power to support the system operation, and this electric energy is converted from mechanical energy, and the mechanical energy is the energy converter when the user operates. The introduction of external forces, which means that in practical applications, the electromagnetic energy conversion module needs to be able to generate enough power for the system to operate at the moment the switch is pressed.

There are many types of electromagnetic energy converters that we are familiar with, and the functions of electromagnetic energy converters are also roughly the same, that is, to provide power for some loads, or to generate continuous power for a period of time. There are also some electromagnetic energy converters that can be specially designed for small autonomous power supply systems, such as wireless switches, wireless remote controls, etc., but there are certain defects in terms of process and structure.

In view of various problems in the prior art (such as conversion efficiency, process structure, etc.), it is urgent to design such a product with stable performance, simple process structure, and adaptability to most consumer needs.

Summary of the invention

The main purpose of the electromagnetic energy converter of the present invention is to provide a small self-powered device Power supply. The electromagnetic energy converter of the present invention has a simple process and is relatively easy to process and manufacture. In addition, it is possible to get rid of the battery by many small electrical devices. The electromagnetic energy converter of the present invention performs the function of converting mechanical energy into electrical energy according to the principle of electromagnetic induction, and adopts a very simple and new structure, so as to be able to supply electric energy to various systems or devices that require transient instantaneous electrical energy.

Compared with the electromagnetic energy converter that has been introduced, the biggest advantage of the electromagnetic energy converter of the present invention is that the process structure is relatively simple, the design and processing are correspondingly simple, and the cost is reduced. This electromagnetic energy converter consists of a set of permanent magnets, a set of soft magnets, and a set of inductor coils, which not only simplifies the process structure, but also has a very high conversion efficiency.

The electromagnetic energy converter of the present invention performs the function of converting mechanical energy into electrical energy by using a very simple and completely new structure according to the principle of electromagnetic induction, and can supply electric energy to various systems or devices that require transient electric energy.

According to an embodiment of the present invention, there is provided an electromagnetic energy converter for converting mechanical energy into electrical energy, comprising: a set of permanent magnet elements, a set of soft magnetic elements, a set of coil elements, wherein the soft magnet elements and The permanent magnet elements constitute two magnetic circuits that can be switched to each other, and there is a magnetic current only in one of the magnetic circuits, wherein the electromagnetic energy converter comprises a relative moving part, and the relative moving parts can be in two stop positions Inter-movement, and when there is no external action, the relative moving part is in one of the stable stopping positions, and the opposite moving part includes an area that can receive an external force, and when the relative moving part is magnetically held in the two stopping positions In the first stop position, if an external force greater than the magnetic force is applied outside the region where the external force can be received, the relative moving member will move to the second stop position of the two stop positions, at which time the magnetic current Switching from one magnetic circuit to another, where the opposite moving part is at the stop position, on the wire Magnetic flow through.

According to another embodiment of the present invention, there are two common magnetic circuits and two magnetic circuits in the two magnetic circuits, wherein the permanent magnet elements are in a first common magnetic circuit segment, and on the second common magnetic circuit segment. A coil is wound, and when the magnetic current is switched from one magnetic circuit to the other, the direction of the magnetic current on the second common magnetic circuit is reversed.

According to another embodiment of the present invention, the soft magnet element and the other element constitute a relative moving part, or the soft magnet element and the permanent magnet element together form a relative moving part with the other element, and the relative moving part forms two when moving. The stop position, due to the action of the magnetic force, makes the relative moving part must be in one of them when there is no external action. Moving position, but not in other states.

According to another embodiment of the present invention, the relative moving parts are connected by a point contact, a line contact, a surface contact, etc., and there is a magnetic current on one of the magnetic paths regardless of whether there is an air gap in the magnetic circuit. And the magnetic current is only present in this magnetic circuit.

According to another embodiment of the present invention, the soft magnetic component has a region for receiving an external force, and when the received external force exceeds the magnetic force, the soft magnetic component occurs from the first stop position to the second stop position or Movement of the second stop position to the first stop position.

According to another embodiment of the invention, it further includes an element that accepts an externally applied force.

According to another embodiment of the invention, the electromagnetic energy converter has four limit points for limiting motion during movement of the relative moving parts.

According to another embodiment of the invention, the movement of the relative moving parts is translational. According to another embodiment of the invention, the movement of the relative moving member is a rotation. According to another embodiment of the invention, the soft magnetic body is composed of iron, an iron-based alloy, a ferrous salt or a nickel-iron alloy.

According to another embodiment of the invention, the relative moving member has an axis of rotation for rotation.

According to another embodiment of the present invention, the first stop position and the second stop position are both stable positions, and the relative moving part may stop at the first stop position or the second At the stop position.

According to another embodiment of the present invention, by introducing a member that provides an external force, one of the two stop positions becomes unstable, and when the relative moving member is in the unstable stop position, when there is no external action, It automatically returns to another stable stop position.

According to another embodiment of the invention, the means for providing an external force is an elastic means. Further areas of applicability of the present invention will become apparent from the description provided. It is to be understood that the description and specific examples of the invention are intended to be

DRAWINGS

The invention will be better understood by the preferred embodiments provided herein. The drawings provided herein are for illustrative purposes only and are not intended to limit the scope of the invention.

Figure 1 shows an electromagnetic energy converter according to a first embodiment of the present invention, the electromagnetic The energy converter is in a first stop position.

Fig. 2 shows an electromagnetic energy converter according to a first embodiment of the invention, the electromagnetic energy converter being in a second stop position.

Figure 3 illustrates an electromagnetic energy converter in accordance with a second embodiment of the present invention in a first stop position.

Figure 4 shows an electromagnetic energy converter in accordance with a second embodiment of the present invention in a second stop position.

Throughout the drawings, the same reference numerals are used to refer to the same parts.

detailed description

Examples of the invention will now be described more fully with reference to the accompanying drawings. The following description is merely exemplary in nature and does not limit the invention and its application or use.

The electromagnetic energy converter of the present invention comprises two magnetic circuits. By switching the two magnetic circuits, the function of converting mechanical energy into electrical energy is completed. The two magnetic circuits include two common magnetic circuits and two magnetic circuits. On one common magnetic circuit, there are permanent magnet elements, and the other magnetic circuit is wound around the other.

Referring to Figure 1, there is shown an electromagnetic energy converter in accordance with a first embodiment of the present invention. The biggest advantage of this electromagnetic energy converter is that the structure is relatively simple and easy to design and process, thus greatly reducing the cost.

Specifically, the electromagnetic energy converter shown in Fig. 1 includes a set of permanent magnet elements 1, a set of soft magnetic elements 3 and 4, and a set of coil elements 2. The permanent magnet element 1 and the soft magnetic elements 3 and 4 constitute two magnetic circuits that can be switched to each other, including two common magnetic circuits and two magnetic circuits, and magnetic current must exist in one of the magnetic circuits, and only There is a magnetic current in one magnetic circuit.

The permanent magnet element has a south (S) north (N) pole. Further, the upper and lower sides of the permanent magnet element 1 are attracted to each other by the magnetic force by the soft magnetic members 3, and they are kept in contact with each other and fixed with respect to each other. Thereby, the soft magnetic element 3 and the permanent magnet element 1 can constitute a movable member.

The soft magnetic member 4 has three plate-like ends, which are the first end, the second end, and the third end in order from top to bottom in the drawing. The turns element 2 is wound around the second end in the middle. The soft magnetic element 4 can be used as a fixed part, and the movable element moves between the three ends.

The motion of the embodiment shown in Figures 1 and 2 is a rotation and is limited by four limit points 8a, 8b, 8c, 8d during rotation. The movable part is formed during the rotation The two stop positions are a first stop position and a second stop position, respectively.

As shown in FIG. 1, when the movable member is in the first stop position, the soft magnetic element 3 on the upper side of the N pole of the permanent magnet element is in contact with the first end of the soft magnetic element 4, and the lower side of the S pole of the permanent magnet element The soft magnetic element 3 is in contact with the second end of the soft magnetic element 4, whereby a magnetic circuit is communicated, in which a magnetic current is present, and a first magnetic induction line direction is generated in the wire.

The movable member has an area for receiving an external force, and the external force refers to the combined force of all the forces applied to the system outside the system. According to different working conditions, the external force may be directly from the user, or It is a joint effort with other agencies, or other situations.

Under certain working conditions, under the action of the required external force satisfying a certain size and direction, the movable member will rotate from the first stop position to the second stop position shown in Fig. 2, at which time the permanent magnet element The soft magnetic element 3 on the upper side of the N pole is in contact with the second end of the soft magnetic element 4, and the soft magnetic element 3 on the lower side of the S pole of the permanent magnet element is in contact with the third end of the soft magnetic element 4, thereby, the other The magnetic circuit is connected, wherein there is a magnetic current, and a second magnetic induction line direction is generated in the coil.

During the rotation of the movable member from the first stop position to the second stop position, the magnetic circuit switches the first magnetic circuit to the second magnetic circuit, and the direction of the magnetic induction line in the line is reversed, and the magnetic flux changes, the line 圏Inductive current is generated in the middle. On the other hand, in the process of rotating the movable member from the second stop position to the first stop position, the direction of the magnetic induction line in the coil is also reversed, the magnetic flux is changed, and an induced current is also generated in the coil.

Both the first stop position and the second stop position are stable positions. That is, the device of the present invention will maintain the first or second stop position all the time without external interference. Moreover, the device must be in one of the stop positions.

However, in other embodiments of the invention, self-resetting may occur when the device of the present invention is at a certain stop position by introducing a component that provides an external force, such as a resilient means.

It is to be noted that, although in the description of Figs. 1 and 2, the soft magnetic member 3 and the permanent magnet member 1 function as a movable member, and the soft magnetic member 4 serves as a fixed member. However, in practice, the soft magnetic component 3 and the permanent magnet component 1 may be used as the fixing member, the soft magnetic component 4 as the movable member, or the like. That is to say, the above elements can mutually move parts.

3 and 4 show an electromagnetic energy converter in accordance with a second embodiment of the present invention. 1 and 2, the electromagnetic energy converter of the second embodiment also includes a set of permanent magnet elements 1, A set of soft magnetic elements 3 and 4, and a set of turns element 2. The permanent magnet elements, the soft magnetic elements 3 and 4 constitute two magnetic circuits that can be switched to each other, including two common magnetic circuits and two magnetic circuits, and magnetic current must exist in one of the magnetic circuits, and only in the magnetic circuit There is a magnetic current in one magnetic circuit.

The second embodiment of Figs. 3 and 4 is similar to the first embodiment of Figs. 1 and 2, and the same portions will not be described again. The difference is that the motion of the embodiment shown in Figures 3 and 4 is translational and is limited by the four limit points 8a, 8b, 8c, 8d during translation. The relative motion component also forms two stop positions during the translation process, which are the first stop position and the second stop position, respectively.

That is, in the process of the relative moving member moving from the first stop position to the second stop position or from the second stop position to the first stop position, the magnetic route first magnetic circuit is switched to the second magnetic field. The road is switched from the second magnetic circuit to the first magnetic circuit. During the switching process, the direction of the magnetic induction line in the coil is reversed, the magnetic flux changes, and an induced current is generated in the coil.

However, in other embodiments of the invention, self-resetting may occur when the device of the present invention is at a certain stop position by introducing a component that provides an external force (e.g., a resilient means).

With such an arrangement, the efficiency of converting mechanical energy into electrical energy is very high, and the loss during the conversion process is very small.

Embodiments of the invention are particularly advantageous in that they have two magnetic circuits and the movable element is limited by four limit points, the movement of the movable element between the two stop positions creating a magnetic circuit Switching, thereby generating electromagnetic induction.

After a certain adjustment, the electric energy generated in this way is temporarily stored by some components, and then discharged through these components, so that power can be supplied to a small self-powered device or system such as a wireless switch.

The electromagnetic energy converter of the present invention not only simplifies the process structure, but also ensures conversion efficiency. Since the two magnetic circuits that are switched with each other are applied, the electromagnetic energy converter of the present invention has high conversion efficiency, and the electric energy generated during the sensing process can support the stable operation of the operating system.

The invention has been described in detail above with reference to the preferred embodiments thereof, and it is obvious that modifications and variations can be made without departing from the scope of the invention as defined in the appended claims. More specifically, although some aspects of the invention are identified as preferred or advantageous herein, the invention is not necessarily limited to the preferred embodiments of the invention.

Claims

Rights request

An electromagnetic energy converter for converting mechanical energy into electrical energy, comprising: a set of permanent magnet elements, a set of soft magnetic elements, a set of coil elements, wherein the soft magnetic elements and the permanent magnet elements constitute a switchable Two magnetic circuits, and there is magnetic current only in one of the magnetic circuits,

Wherein the electromagnetic energy converter comprises a relatively moving part, the relative moving part being movable between two stop positions, and in the absence of external action, the relative moving part is in a stable stop position,

The opposite moving component includes an area that can receive an external force. When the relative moving part is magnetically held in the first stop position of the two stop positions, if a magnetic field larger than the magnetic force is applied outside the area where the external force can be received The external force, the relative moving part will move to the second stop position of the two stop positions, at which time the magnetic current will switch from one magnetic circuit to the other magnetic circuit.

Wherever the relative moving parts are in which stop position, magnetic flux passes through the turns.

2. The electromagnetic energy converter according to claim 1, wherein in the two magnetic circuits, there are two common magnetic circuits and two magnetic circuits, wherein the permanent magnet elements are in a first common magnetic field. In the road section, the wire 圏 is wound on the second common magnetic circuit section, and when the magnetic current is switched from one magnetic circuit to the other magnetic circuit, the magnetic current direction of the second common magnetic circuit is reversed.

3. The electromagnetic energy converter according to claim 1, wherein the soft magnet element and the other element constitute a relative moving part, or the soft magnet element and the permanent magnet element together form a relative moving part with the other element, the relative movement When the component is in motion, two stop positions are formed. Due to the action of the magnetic force, when there is no external action, the relative moving component must be in one of the stop positions, and it is impossible to be in other states.

4. The electromagnetic energy converter according to claim 1, wherein the relative moving parts are connected by point contact, line contact, surface contact, etc., and regardless of whether there is an air gap in the magnetic circuit, There is a magnetic current on one of the magnetic circuits, and the magnetic current exists only in this magnetic circuit.

The electromagnetic energy converter according to claim 1, wherein the soft magnetic component has a region for receiving an external force, and the soft magnetic component is caused by the first stop when the received external force exceeds the magnetic force The movement to the second stop position or from the second stop position to the first stop position.

6. The electromagnetic energy converter of claim 5, further comprising an element that receives an externally applied force.

7. The electromagnetic energy converter of claim 1 wherein said electromagnetic energy converter has four limit points for limiting motion during movement of said relatively moving member.

The electromagnetic energy converter according to any one of claims 1 to 7, wherein the movement of the relative moving member is translational.

The electromagnetic energy converter according to any one of claims 1 to 7, wherein the movement of the relative moving member is a rotation.

The electromagnetic energy converter according to claim 1, wherein the soft magnetic body is composed of iron, an iron-based alloy, a ferrous salt or a nickel-iron alloy.

The electromagnetic energy converter according to claim 9, wherein the relative moving member has an axis of rotation for rotation.

12. The electromagnetic energy converter according to claim 1, wherein the first stop position and the second stop position are both stable positions, and the relative moving member can be stopped at the a stop position or the second stop position.

13. The electromagnetic energy converter according to claim 1, wherein one of the two stop positions becomes unstable by introducing a member that provides an external force, and the relative moving member is at the unstable end The moving position, when there is no external action, can automatically return to another stable stop position.

The electromagnetic energy converter according to claim 13, wherein the member for providing an external force is an elastic device.